The Society for the Diffusion of Useful KnowledgeThe Society for the Diffusion of Useful Knowledge (SDUK), founded in 1826, up and running through 1848, published inexpensive texts…  | 
            
                    The Society for the Diffusion of Useful KnowledgeThe Society for the Diffusion of Useful Knowledge (SDUK), founded in 1826, up and running through 1848, published inexpensive texts…  |